Integrated modeling of Core, Edge pedestal and SOL using super H-mode experiments in DIII-D

A theory-based integrated modeling of Core, Edge pedestal, and Scrape-Off-Layer (CESOL) code has been successfully tested against existing DIII-D super-H mode discharges for an optimized pedestal regime to simultaneously improve core performance and control plasma heat and particle exhaust. Recent DIII-D experiments utilized advanced control algorithms to expand the operating space of the super-H regime using combination of plasma shaping, nitrogen impurity seeding, deuterium gas puffing, and 3D magnetic perturbations. The core, edge pedestal and SOL regions are strongly coupled but governed by different physical processes, emphasizing the need for a quantitative understanding of the trade-offs or integration. CESOL can reproduce the experimentally measured plasma density and temperature profiles reasonably well across the regions from the magnetic axis to the scrape-off-layer by integrating three independent, compound IPS workflows: IPS-FASTRAN for core, IPS-EPED1 for edge pedestal, and IPS-SOLPS for SOL. Based on its reasonable interpretive capability in accordance with experimental findings against super-H mode plasmas on DIII-D, CESOL will be employed for predictive modeling to optimize both the core and edge simultaneously for DIII-D shape and volume rise studies.